package _23define;

import java.io.*;

public class Demo {
    public static void main(String[] args) throws IOException {
        BufferedReader br=new BufferedReader(new FileReader("src/note/a.txt"));
        BufferedWriter ba=new BufferedWriter(new FileWriter("src/note/b.txt"));
        String line;
        while ((line=br.readLine())!=null){
            String nums=new StringBuffer(line).reverse().toString();
            ba.write(nums);
            ba.write("\t\r");
        }
        br.close();
        ba.flush();
        ba.close();
    }
}
